256 lines
12 KiB
C++
256 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <drawinglayer/primitive2d/texteffectprimitive2d.hxx>
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#include <drawinglayer/geometry/viewinformation2d.hxx>
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#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
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#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
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#include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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namespace drawinglayer
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{
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namespace primitive2d
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{
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static double fDiscreteSize(1.1);
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Primitive2DSequence TextEffectPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
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{
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Primitive2DSequence aRetval;
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// get the distance of one discrete units from target display. Use between 1.0 and sqrt(2) to
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// have good results on rotated objects, too
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const basegfx::B2DVector aDistance(rViewInformation.getInverseObjectToViewTransformation() *
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basegfx::B2DVector(fDiscreteSize, fDiscreteSize));
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const basegfx::B2DVector aDiagonalDistance(aDistance * (1.0 / 1.44));
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switch(getTextEffectStyle2D())
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{
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case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED:
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case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED:
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case TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT:
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case TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT:
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{
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// prepare transform of sub-group back to (0,0) and align to X-Axis
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basegfx::B2DHomMatrix aBackTransform(basegfx::tools::createTranslateB2DHomMatrix(
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-getRotationCenter().getX(), -getRotationCenter().getY()));
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aBackTransform.rotate(-getDirection());
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// prepare transform of sub-group back to it's position and rotation
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basegfx::B2DHomMatrix aForwardTransform(basegfx::tools::createRotateB2DHomMatrix(getDirection()));
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aForwardTransform.translate(getRotationCenter().getX(), getRotationCenter().getY());
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// create transformation for one discrete unit
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const bool bEmbossed(
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TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED == getTextEffectStyle2D()
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|| TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D());
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const bool bDefaultTextColor(
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TEXTEFFECTSTYLE2D_RELIEF_EMBOSSED_DEFAULT == getTextEffectStyle2D()
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|| TEXTEFFECTSTYLE2D_RELIEF_ENGRAVED_DEFAULT == getTextEffectStyle2D());
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basegfx::B2DHomMatrix aTransform(aBackTransform);
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aRetval.realloc(2);
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if(bEmbossed)
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{
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// to bottom-right
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aTransform.translate(aDiagonalDistance.getX(), aDiagonalDistance.getY());
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}
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else
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{
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// to top-left
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aTransform.translate(-aDiagonalDistance.getX(), -aDiagonalDistance.getY());
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}
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aTransform *= aForwardTransform;
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if(bDefaultTextColor)
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{
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// emboss/engrave in black, original forced to white
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const basegfx::BColorModifierSharedPtr aBColorModifierToGray(
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new basegfx::BColorModifier_replace(
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basegfx::BColor(0.0)));
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const Primitive2DReference xModifiedColor(
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new ModifiedColorPrimitive2D(
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getTextContent(),
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aBColorModifierToGray));
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aRetval[0] = Primitive2DReference(
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new TransformPrimitive2D(
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aTransform,
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Primitive2DSequence(&xModifiedColor, 1)));
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// add original, too
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const basegfx::BColorModifierSharedPtr aBColorModifierToWhite(
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new basegfx::BColorModifier_replace(
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basegfx::BColor(1.0)));
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aRetval[1] = Primitive2DReference(
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new ModifiedColorPrimitive2D(
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getTextContent(),
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aBColorModifierToWhite));
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}
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else
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{
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// emboss/engrave in gray, keep original's color
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const basegfx::BColorModifierSharedPtr aBColorModifierToGray(
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new basegfx::BColorModifier_replace(
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basegfx::BColor(0.75))); // 192
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const Primitive2DReference xModifiedColor(
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new ModifiedColorPrimitive2D(
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getTextContent(),
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aBColorModifierToGray));
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aRetval[0] = Primitive2DReference(
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new TransformPrimitive2D(
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aTransform,
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Primitive2DSequence(&xModifiedColor, 1)));
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// add original, too
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aRetval[1] = Primitive2DReference(new GroupPrimitive2D(getTextContent()));
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}
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break;
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}
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case TEXTEFFECTSTYLE2D_OUTLINE:
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{
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// create transform primitives in all directions
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basegfx::B2DHomMatrix aTransform;
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aRetval.realloc(9);
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aTransform.set(0, 2, aDistance.getX());
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aTransform.set(1, 2, 0.0);
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aRetval[0] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, aDiagonalDistance.getX());
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aTransform.set(1, 2, aDiagonalDistance.getY());
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aRetval[1] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, 0.0);
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aTransform.set(1, 2, aDistance.getY());
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aRetval[2] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, -aDiagonalDistance.getX());
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aTransform.set(1, 2, aDiagonalDistance.getY());
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aRetval[3] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, -aDistance.getX());
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aTransform.set(1, 2, 0.0);
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aRetval[4] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, -aDiagonalDistance.getX());
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aTransform.set(1, 2, -aDiagonalDistance.getY());
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aRetval[5] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, 0.0);
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aTransform.set(1, 2, -aDistance.getY());
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aRetval[6] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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aTransform.set(0, 2, aDiagonalDistance.getX());
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aTransform.set(1, 2, -aDiagonalDistance.getY());
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aRetval[7] = Primitive2DReference(new TransformPrimitive2D(aTransform, getTextContent()));
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// at last, place original over it, but force to white
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const basegfx::BColorModifierSharedPtr aBColorModifierToWhite(
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new basegfx::BColorModifier_replace(
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basegfx::BColor(1.0, 1.0, 1.0)));
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aRetval[8] = Primitive2DReference(
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new ModifiedColorPrimitive2D(
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getTextContent(),
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aBColorModifierToWhite));
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break;
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}
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}
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return aRetval;
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}
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TextEffectPrimitive2D::TextEffectPrimitive2D(
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const Primitive2DSequence& rTextContent,
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const basegfx::B2DPoint& rRotationCenter,
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double fDirection,
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TextEffectStyle2D eTextEffectStyle2D)
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: BufferedDecompositionPrimitive2D(),
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maTextContent(rTextContent),
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maRotationCenter(rRotationCenter),
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mfDirection(fDirection),
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meTextEffectStyle2D(eTextEffectStyle2D)
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{
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}
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bool TextEffectPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
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{
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if(BasePrimitive2D::operator==(rPrimitive))
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{
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const TextEffectPrimitive2D& rCompare = static_cast<const TextEffectPrimitive2D&>(rPrimitive);
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return (getTextContent() == rCompare.getTextContent()
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&& getRotationCenter() == rCompare.getRotationCenter()
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&& getDirection() == rCompare.getDirection()
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&& getTextEffectStyle2D() == rCompare.getTextEffectStyle2D());
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}
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return false;
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}
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basegfx::B2DRange TextEffectPrimitive2D::getB2DRange(const geometry::ViewInformation2D& rViewInformation) const
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{
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// get range of content and grow by used fDiscreteSize. That way it is not necessary to ask
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// the whole decomposition for its ranges (which may be expensive with outline mode which
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// then will ask 9 times at nearly the same content. This may even be refined here using the
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// TextEffectStyle information, e.g. for TEXTEFFECTSTYLE2D_RELIEF the grow needs only to
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// be in two directions
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basegfx::B2DRange aRetval(getB2DRangeFromPrimitive2DSequence(getTextContent(), rViewInformation));
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aRetval.grow(fDiscreteSize);
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return aRetval;
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}
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Primitive2DSequence TextEffectPrimitive2D::get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
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{
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::osl::MutexGuard aGuard( m_aMutex );
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if(getBuffered2DDecomposition().hasElements())
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{
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if(maLastObjectToViewTransformation != rViewInformation.getObjectToViewTransformation())
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{
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// conditions of last local decomposition have changed, delete
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const_cast< TextEffectPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DSequence());
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}
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}
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if(!getBuffered2DDecomposition().hasElements())
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{
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// remember ViewRange and ViewTransformation
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const_cast< TextEffectPrimitive2D* >(this)->maLastObjectToViewTransformation = rViewInformation.getObjectToViewTransformation();
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}
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// use parent implementation
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return BufferedDecompositionPrimitive2D::get2DDecomposition(rViewInformation);
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}
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// provide unique ID
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ImplPrimitive2DIDBlock(TextEffectPrimitive2D, PRIMITIVE2D_ID_TEXTEFFECTPRIMITIVE2D)
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} // end of namespace primitive2d
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} // end of namespace drawinglayer
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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